Despite fulfilling all the prerequisites in the Shavlik Patch documentation, some users may still find themselves to be unable to connect the plug-in to their WSUS server.
This issue appears to be related by a User Account Control (UAC) issue. In some environments, despite all prerequisites having been met, Shavlik Patch does not receive the elevated adminstrative privileges necessary to connect to the WSUS server.
In order to solve this issue, users must right-click the SCCM shortcut/executable and select "Run as administrator".
This will allow some users to resolve the connection problem and connect to the WSUS server successfully. If you find you are still unable to connect to your WSUS server, please contact Shavlik Support.